Well, to say I am dissapointed in this decision is an understatement. He has the look, of that there is no doubt. But Drax isnt some silent muscle man, he speaks, he is a master tactician, hell he taught Richard Rider to fight in Annihilation.
His whole family was killed including him and then he was resurrected for the sole purpose of killing Thanos and getting revenge. He also has to find out one day that his daughter survived. When he says things they meaningful, powerful and to the point and in dire situations he is the man you want making decisions.
Sorry, but from what I have seen of Bautista he just cant convey this with his acting ability. His casting makes me worry a lot about the characterisation of Drax as well, if he is not going to be what I described above, then he isnt going to be Drax I am afraid. My anticipation for this movie has gone down quite a bit, as Drax is my favourite character from the team and the one I know most about.
My only hope is that his screen test was amazing, and Marvel were so impressed they signed him up. I have never hoped to be proven wrong so much in my life, so come on Bautista, prove me wrong and give me an awesome and faithful Drax.