There's enough there to remain suspicious. The Trump campaign hid their meetings with Russians (see Flynn's transition meetings). They lied about the purpose of the Trump tower meetings. They have claimed financial ties to Russian financial institutions in the past.
None of these things are "false connections propagated by Dem politicians and leftists". They have made these connections evident through their own admissions, and denials.
There is certainly a narrative that drives beyond what we have evidence for, but it's absurd to pretend these things were only propagated from political rivals trying to attack their rivals.
Honestly, after years of the Democrats throwing everything they can at Trump, still nothing. Yet you persist.
Switch your focus to Biden perhaps, the current corrupt president that mishandled classified documents, has made a fortune off his political position.... see the similarities here? No? Of course not.
None of these things are "false connections propagated by Dem politicians and leftists". They have made these connections evident through their own admissions, and denials.
There is certainly a narrative that drives beyond what we have evidence for, but it's absurd to pretend these things were only propagated from political rivals trying to attack their rivals.