that will eventually lead to people seeing animals so differently that they don’t want to eat any meat at all

Like I said, eating less meat is not enough.

This may not tackle the initial purpose which is to make suffering less, right?
I know there are vegans which don't care what other people do, they have made a choice not to contribute to what they see as suffering and that is something I can respect.

The problem I have with no one ever eating meat again relates to the consequences on the long run. Vegans often refer to their desire for all people to stop meat consumption as an evolutionary step, and it is, if we stop eating meat this would most surely have an effect on our bodies, our minds, our behavior. I simply don't think we've studied enough what those consequences would be to claim this (stop meat consumption completely) would help us (us includes other animals) in the overall picture. We need to get evolutionary scientists to do a projection so that we can at least have some idea of the changes we may expect with this massive dietary change.