House and Senate are more or less local elections. Especially the house. They literally represent your district. Different from the presidential elections.
Ok....most of those seats will be up for election and voted on the same time as the presidential election. Thats all Im saying. Unless you plan to just write in a bullshyt candidate for president and vote for everything else? I could see it as a strategy. I just dont see the benefits of non vote over vote in the grand scheme