What conspiracy theories are you referring to? The Russian Hoax story perhaps? That was not a theory - it was a real conspiracy by Clinton and a criminal one at that. If that is not the one - what other conspiracy theories are you talking about?
Who are the Smart Republicans who wants to move on. The Lincoln Project story which prove to be a front for the Democrat? You are too attached and based your arguments entirely on the fake media outlets.
You have no idea about what Left and Right means in USA Politics. Trump always was center-right - while the Democrats used to be far right during the era up to Kenendy and in fact long afterwards were centrists until Clinton took over and moved to center-left. Obama tried to move further left than before - but was otherwise cautious about anything and he was not popular at all as a result. Biden has no idea about anything going on in politics.at present. His unelected handlers write the reports and Biden signed them. His handlers follow the Obama far leftist approach - which Obama did not dare to introduce himself whiolehe was President.
Sure it has happened in the past that the Party in power in the WH lose the mid-term election, but is not a given and often results from minor local swings. The 2019 mid-term election was when the media conspiracy theory on Trump-Putin Collusion was in the media on a daily basis and it was so overwhelming that some fools actually believed it and voted for the Democrats on that basis. So the Democrats ended up with a majority of 35 in the House - but lost two seats in the Senate. The 35 seat majority the Democrats got in 2018 was cut back to 10 in 2020.
So really what normally happen is that the Parties do not live up to what they promise they would do if they win. That used to be the case with rare exceptions and depends on the President's actions. Reagan won the Presidential election in 1980 with the Democrats controlling the House - but in 1982 the Republicans got the majority in the House.- the Democrats did not win in the 1986 mid-term. Since then the three Presidents lost mid-terms repeatedly for a variety of reason - the main ones being the non-appliance of what they promised in the election or through incompetence.
But what is evident now is that the scale of the "revolt" against the Democrats within a year after the election of the President has never happened before. Even the majority of the voters now believe that the 2020 election was fraudulent. What is happening now is that it could be the end of the Democratic Party as we know it. The left wingers will take over the rump of the Party - they already have the fake media on their side. The more moderate group will either try to form a separate party or will join the Republicans. .