If you can’t beat this shitty tactic then you’re really gonna hate the good ones.
“when they sonic boom_>jump towards u and air grab u.” - yup I do this too, it’s good.
You can srk, which has some invincibility frames (although I’m not sure if Sakura’s srk is good for this) so it won’t get hit by the SB and you’ll knock them out of the air, or you can jump and hit pretty much any attack before he air throws, or you can block the SB and NOT jump then see what happens and react accordingly, or you can neutral jump over SB and j.rh, etc. That’s the fun part of the game, figuring out what you can do to beat what your opponent is doing.
If you know he’s gonna FK when you get near then you already have pretty much won, what’s the problem? Block and punish. Also, Sakura’s j.rh is nice, especially against Guile. It’s hard to c.hp and FK trades often unless you time it well. I would try some not so obvious jump ins with that. I know hurricane kick is good against booms, I don’t know if Sakura’s version works the same but I say try it. It seems like when he does something you have one way of reacting and it’s not working for you so you’re asking for help. Just try doing something else.