All this that does is ensure this election’s Democrat is the same as last election’s Republican
Even if this is true and we're in a metaphorical political nosedive, that's still harm reduction, it's 4 more years to be politically active in a functioning democracy, vote in every primary and general you can from your local school board up to the presidential election, and hopefully pull up hard enough that we don't actually smash into the ground
If you think our democracy is already too far gone and completely unsalvageable, you shouldn't be advocating for other people not to vote, you should instead be advocating for people to join/form a local militia and start training to defend it because clearly it's already time to break out the 4th box