The size of the stick is purely about comfort level. You seriously suggest 140 million Russians will beat 480 million European union population. With better industrial capacity, more planes and so on.
They bogged down with 40 million Ukrainians.
What having USA buys "it isn't even a fight". Which seems to be many peoples comfort level. My comfort level is "99% it isn't a fight, 1% it is a fight, it won't be a walk over picnic to Moscow".
I also could get driven over by a drunk driver tomorrow and that is more likely, than Russia attacking us in next decade even without USA on our side.
"Owwww please daddy USA, save us from having to have any level of risk to concern with at all, 1% of risk is too much risk".
And you have done your civic duty and reported these cases of crime you know of happening to prosecutors/law enforcement?
Yes, if anyone else was doing it, they should be charged. Even in this case, it wasn't merely Le Pen. The case involved over 10 people being charged for various roles in misappropriation funds.