I haven’t seen evidence of “coordination.” I will be surprised if it results in findings of collusion and charges you describe. The proof will be in the pudding.
You make a good observation that, “Scandal can even happen around events that never actually transpired, or are completely routine events.”
Some of the revelations however unseemly or ethically dubious are not really shocking. Foreign countries try to influence our policy all the time with direct lobbying or through intermediaries, or through people who agree with them. Under a harsh light I think we’d find unclean hands in any administration and especially among hangers on.
An argument could be made for a permanent special counsel to keep an eye on these things in every administration.
I’ll be surprised if the GOP holds the House. Why are you so…pessimistic?