> the higher the turnout, legal or not, the more power for that state
Every actual study of the matter I've seen or heard of has shown no evidence of any significant fraudulent voting, particularly not systemic fraudulent voting. While there might be a theoretical concern about incentives here, there's a lot of problems we know are happening right now with voter suppression under the system that we have.
That context for those statements is the voter ID boogeyman, which is 100% bullshit.
Machine politics and the nonsense behind it is a form of vote fraud. While southern states have a long history of denying African Americans the ability to vote, states where county politics controls voting like New York are also problematic.
More directly, there are plenty of schemes to fraudulently get votes counted, from absentee ballot fraud in nursing homes to voting irregularities in religious communities.
From the perspective of systems security -- there are too many security vulnerabilities regardless of whether or not they are being actively exploited to centralize national elections to a couple heavily populated states. These are states that have a bad track record of internal governance, and abolishing the EC will provide ample additional motivation to abuse those vulnerabilities if they aren't already.
California recently had to be forced by lawsuit to remove 5 million invalid voter registrations. Multiple counties have more registered voters than they have age 18+ citizens. It is unclear how often these registrations were actually used to vote, but isn't it possible that ballots could be printed and filled surreptitiously for these registrations in the future?
Every actual study of the matter I've seen or heard of has shown no evidence of any significant fraudulent voting, particularly not systemic fraudulent voting. While there might be a theoretical concern about incentives here, there's a lot of problems we know are happening right now with voter suppression under the system that we have.