Animals are all equal in when it comes to suffering. Why be particularly sensitive to that of dogs or cats and be complicit in the massacre of calves, cows, lambs, sheep, poultry, pigs or fish ...?
The belief that one must eat meat to ingest proteins is false since there are many more proteins in plants. But it is necessary to get out of the force of habit.
The animal allows the human being to develop his sensitivity. A relationship of love can be established with most animals. They are not there to be eaten but to be loved.