The two parties are nothing close to the same. The Dems are flawed but actually try and govern and pass bills that helps citizens even if influenced by money. The Dems don't do enough.
The Republicans do not even pretend to govern and haven't tried to pass anything that would help citizens in 20+ years(look it up). Their major achievements or attempts(repeal Obamacare) were done against the wishes of their own voters. They get votes from misinformation, gerrymandering and total ignorance, bullshit about Hillary etc....The head of the Republican party is a lying conman clown. Even the Supreme Court is now a partisan group of hacks.
There isn't a legit reason for an average citizen to vote Republican