there is absolutely NO evidence of any collusion between Trump and Russia
Naturally. There is however evidence that Russia attempted to influence the election in Trump's favour. Cui bono? It might be that Russia felt it benefited them enough for them to do it alone. It might be that Russia felt it could have a bigger impact if they acted in concert with the Trump camp. There is evidence that there was some deception about Russian communications from the Trump camp. The timings of certain statements suggest that Trump had foreknowledge of information gathered and subsequently released by Russian groups. There is evidence that Trump declined to release information regarding his finances.
So there is smoke, it's certainly a good idea to investigate the existence of a fire. And if the President was complicit in starting the fire - that is important. The consequences are such that it would be a good idea to be as certain of the truth of the issue as possible.
The consequences of a President not being eligible for the Presidency seems less consequential than if the President owes Russia - or if Russia has some leverage over the President.
along with one phony disgusting "dossier" against Trump invented by Democrats
The dossier was not invented by Democrats. The Republicans paid Fusion GPS to investigate Trump. Then the Democrats started paying Fusion GPS. Either Fusion discovered the facts, or they invented them, or they discovered other people's inventions. Not the Democrats.
there's plenty of evidence of Clinton's Russia collusion.
The right wing media should start reporting this, rather than talking about the Uranium deal, then.