Overall, yes, but not for all seats. New Hampshire was untrustworthy in 2016, both for the presidential electors and for the senator. Some of the house seats, particularly in California, were untrustworthy. Florida was nearly stolen via Broward County, and then again for governor/senator in 2018. Numerous seats were stolen in 2018 and 2020, though I do believe that overall control of the House could be legitimate.

I think you're implying that fraud could reasonably go both directions. I call your attention to the fact that felons are 5 to 7 times more likely to vote for democrats than republicans. Election workers who are willing to commit crime are clearly going to favor democrats. That just isn't the law-and-order party.

In any case, if you had an issue with the 2016 results, you should have cooperated to secure the elections. You didn't, because you know that you benefit from insecure elections.

The situation with fraud evidence is like a cop found with a dozen dead people, all shot between the eyes, and his body camera turned off. He says they all attacked him, and he was just a really lucky man. There is no evidence otherwise, because he disabled the camera. Didn't do anything bad? Sure...