Hit the falcon with more than 1 attack per turn. It cost as much as 2 hips with C-3PO on it. and C-3PO can only stop 1 attack per turn.
Rebel solution for Falcon, Biggs at range 3 with supporting upgrades such as luke with draw their fire and R2D2 and a couple of B wings or Y-wings for firepower.
Imperial solution for falcon, Howlrunner swarm throw in Backstabber there too, your opponent won't worry about firing arcs with a 360 so Backstabber will more than likely get an extra attack. If you have the points to spare swap a few academy for black squadron with opportunist or outmaneuver so as your academy blocks the falcon actions your black squadron get extra dice rolls.
There are always solutions, I don't think anyone is doubting that (and to a certain degree this is what balances the game), but when those solutions are so niche and specific that they perform poorly against any other list they really aren't really a solution at all.
Sure Biggs with Luke + R2-D2 + DTF is a solution but clearly its not a good enough squad (or part thereof) for it to be a contender vs the rest of the field in terms of consistent results for high level events.
the same with focusing down the YT, sure you might eventually get there but in leaving alone the 2-4 remaining ships unharmed and free to go about their business is never ideal either.
Currently the Tie Swarm (the Great White Shark of X-Wing as described by the FFG game designers) appears to be putting up consistently significant numbers to both be a counter to Fat Han while at the same time not folding completely to everything.else.

