I can't even begin to explain how frustrating it is to be blamed for "the problem" when I tell someone I don't plan to vote. In Philadelphia, it's "Democrat" vs "Democrat" - there hasn't been a serious Republican government in power in 50+ years - and while I tend to lean left, a lack of competition has left a trouble, corrupted government. In PA, we're presented with pre-vetted candidates to choose from. In national elections, if there were 1000 of me it wouldn't matter, our electoral votes go to the Democratic candidate and has since 1998.
Voting is a pointless waste of time for me. There isn't actually a candidate that thinks like I do, and even if there were, I hope they're in the pre-selected party. I don't find the least of evils to be anything but useless to any cause to have government be actually representative or "work for the people."
Participation in a corrupt system can be seen as granting it legitimacy.
I think that's pretty unambiguously true, but voting is free and relatively easy.
And thus you admit to being part of the problem.