I know your voting system well enough

The rest of your comment shows that to be untrue, especially:

but the fact is, by not voting, you are implicitly agreeing with whatever decision is made by your fellow citizens

You’re pinning it on the federal level, but people choose to vote or not on the state level. Californians who didn’t vote had their vote go to Kamala by your logic, not Trump. Follow that through and you get more votes “for” the Dems than the repubs