Some 90% of Germans support stronger legal protections for animal welfare. That makes the debate more complicated than a simple for or against.
Why? If a law passes with 90% support in a democracy, the other 10% clearly have failed to make reasonable arguments against it. Given that most laws nowadays pass with quite a bit less than that, I fail to see the problem.
Also, if your hobby or business relies on hurting other beings it is not a good hobby/business.
Laws that demand violence to be used in proportion with the danger posed by the individual(s) and damage caused?
Proper checks and balances to enforce said laws?