Every individual within the United States should have an equal vote, your vote should not be worth more than anybody else. You're wealth, ethnicity, religion, & / or region has nothing to do with how much your vote is worth. Now obviously there should be legal protections so that minority groups can't be discriminated against or oppressed or harmed in some way. Your constitutional rights should always be protected, but in a Democracy when the popular vote doesn't go in the direction you want it to, you can chalk that up as a sad day for you.
Some will make the argument that we don't live in a Democracy but instead a Republic. The truth is that we live in both. We live in a Democracy within a Republic. The definition of Republic is:"A state in which supreme power is held by the people & their elected representatives, & which has an elected or nominated President rather than a monarch." The key phrase being, "Elected Representatives". This means our power structure is in fact a Republic, but we elect our Representatives through a Democratic process. So we essentially function as both a Democracy & a Republic. The two are completely compatible with one another, & are both held as core American values. In fact it would be almost unfathomable to have a Republic without the process of a Democracy.
Another argument I have heard is that the popular vote is unfair as big cities voters may decide every Presidential election because their vote is worth more because they outnumber more rural areas. Although the influence of votes from a populated area doesn't mean those votes are worth more, it just simply means there is more people with an equal vote who happen to outnumber & disagree with rural voters. Governing based on the ideologies of the majority is exactly what Democracy is. If you don't like that concept, you have an obligation to admit you don't like Democracy & you are inherently undemocratic. If the voters who live in rural states want to have more influence on an election, Instead of literally being given a vote that is worth more than those who live in states that have big cities (In An Ineffective, Pathetic Detrimental Attempt To Even Things Out) The individuals who lives in rural states should do political activism & / or make a case for their ideologies & viewpoints in an attempt to sway public opinion in more populated states to come around to their way of thinking. The Electoral College is like the equivalent of those parents who make a big deal about their children deserving a trophy in a sports game despite their children being on the losing team. In many cases you're either a winner or a loser, & in a Democratic Republic you're either the majority or the minority. If you're the minority you should spend your time advocating your viewpoints & trying to sway other voters who have different viewpoints in an attempt to make your viewpoints the majority. It should be a free Marketplace of ideas. The Electoral College is nothing more than a crony marketplace of ideas.
I will be the first to admit a big reason many people are coming out against the Electoral College now is because their candidate Hillary Clinton lost. Although I despise the lying Right Wing Neo-Liberal corporate Establishment Fascist war criminal Hillary Clinton, I must stay principled on this issue. Not everyone who is against the Electoral College is a Hillary supporter (Myself Included). This movement pushing against the Electoral College didn't get started when Al Gore or Hillary Clinton loss, the truth is that we who believe in Democracy have always hated the Electoral College. Honestly, I don't give a flying fuck who started the movement nor do I care why they are doing it. The fact that they are doing it is the right thing to do. Just because your enemy who you disagree with on many issues is among the individuals pushing for what is right, doesn't mean you simply oppose it because you don't want to work with your opposition on issues even when they are correct.
I'm not a Republican & I hate Donald Trump, but if Donald Trump actually kills the TPP, I'll be on his side. I'm not a Libertarian, & I don't like Rand Paul, but when he says he is against our unnecessary wars, I'm on his side. I despise Hillary Clinton & her uneducated misinformed moronic low-information supporters, but if they want to get rid of the Electoral College, I'm on their side. I don't have this childish mentality that I should always oppose everybody I disagree with on every issue. Even if I completely disagree with somebody on 90% of the issues, if they're doing the right thing & we have a common goal, then I am willing to work with them to accomplish that goal. I don't care what the reason for doing the right thing is, I care about the fact that they're doing the right thing. Abolishing the Electoral College is absolutely the right thing to do, Because one person one vote. The fact of the matter is you can't have a true Democratic Republic if the minority is choosing the Representatives.