JFK had a back channel to Russia.
Obama had a back channel to Iran.
Jarred tried to set up a back panel with Russia.
So why are two OK and one isn’t?
JFK and Obama set their’s up through the US intelligence community.
Jarred wanted to set Trump’s up using Russian equipment hiding it from the US intelligence community.
If the difference isn’t clear, let me know and I’ll explain.
There is an obvious error in your OP. JFK didn’t use the intell community to back channel the USSR. He did it covertly because he couldn’t trust the intell community.
As far as Kushner goes I can’t comment, other then to say I don’t doubt he was up to no good.
Oh puh leaze. JFK didn't use Russian equipment relayed through the Russian embassy. JFK went though the State Department just like Jarrod and Trump should, but for some reason no one will talk about, they don't want to. Why would Trump and his cohorts keeps secret their meetings with Russia. If anyone else did that, what would be the reasoning.
Try to think it through.
Our country is not the enemy. Unless you are Putin and/or have been compromised and WORK for Putin.