I call it crab grass, but not sure if that is right. Mostly because stuff that adverises as crab grass killer does not kill this.

I want it to die, but not the bermuda. Any suggestions? Preferably something that i can use in my tank sprayer.

I have sprayed MSM (killing bahia which is awesome, and Sedge Ender, which is slowly knocking back the nut sedge and supposedly kills crab grass)

Looks like goose grass Roondup now, pre-emerge next spring

This

Wear nitrile gloves, and soak a rag in Roundup and wipe the bad grass in such a way that the roundup does not drip on the good grass.

Anything that will kill it without harming other grass or is going nuclear my only option?

I have a fair amount of this stuff.

Dig it up

Had some in my yard. An old farmer told me to sell the house.

MSMA or Celsius

If you have Bermuda, try QuinKill max - selective herbicide that will absolutely nuke crab grass, but I have had some success with it on goose grass. Do not use on St. Augustine. For best results, mix with a surfactant.

Goose grass. If you can get your hands on some
Revolver or Manage it may knock it back but it's too big now. Pull it out and use pre-emergent herb next spring.