All earthborn, Eternals, Thanos, and his father Mentor, can teleport of their own individual power. They find the experience unpleasant, so they use technology to teleport whenever possible, bit they can do it.
Secondly, there is no such thing as a Thanos fanboy. This guy is so badass it's stupid, and with prep NOTHING is beyond his grasp. Thanos is the reason we say "Fill in the blank" is skyfather level, or even use skyfathers as measuring sticks for power. Before his fight with Odin the term skyfather meant a lot less than it does now. Once we saw a skyfather could beat up on The Mad Titan that instantly made them the shiznit.
Someone would have to claim Thanos could beat an abstract w/o prep to even be approaching fanboyism with this dude.
Thirdly, I know Bats is useless in this fight. His 2 major strengths are his prep ability and his fighting skill, and Thanos outclasses him in both. And Strange is at least as good as Bats with prep. So yeah, he's useless. I just threw him in there to try and lure his fanboys out. I just knew one of them would claim he's a better fighter than The Mad Titan, or that he's anything more than an insect to Thanos.
So this is really about Dr. Strange with the Hulks unlimited rage and strength vs Thanos of Titan.