Originally Posted by
Twickster
Bifrost doesn't work that way, its not an instant teleport and more a "tunnel" that one can exit before the intended destination. See Hela throwing Thor and Loki off the bifrost in Ragnarok.
Given this, this tactic is less than effective. Carol is completely fine in space, has feats of crossing intergalactic distances and can come back under her own power.
If its simply a match between Thor and Carol, barring a lucky Stormbreaker hit, Carol also ragdolls Thanos, who in turn ragdolls Thor. It's Carol's fight to lose.