RCP: Harris vs. Trump in battleground states are within margin of error

It’s because of low information voters, I think. Undecided voters are typically low information

RCP is a dumb average with a conservative leaning because it can be easily gamed. Your point still stands, it should be a blowout, but RCP isn't a great source for meta-analysis of polling.

I don't think that much anymore. It's going to get worse for Trump.

The North-Midwest is almost certainly locked up because of Walz. The polling has changed too drastically to be statistically incorrect, and new Democrat voter registration is surging so much, the they have legal reps already starting process in courts to ensure they don't get thrown out at the zero hour as the GOP has been fighting to do.

Pennsylvania has shifted more towards Harris, and it was thought to be Blue this cycle anyway.

Arizona and Nevada are absolutely wild. Cannot tell WTF is going on there, plus the GOP has been fighting to get legit voters removed from rolls like in Texas.

Florida and North Carolina were seeming to be somewhat in play again for Dems, and either one of those don't even count as Swing States anymore. Either of them turn for Harris, and it's almost certainly a win.