Allah says in Holy Quran:
La iqraaha fiddeen
There is no compulsion in matter of faith. Hence you cannot say that one shout do this or or do that as only Allah has reward for our deeds.
However on the other point you mentioned that this is the Sunnah of Holy Prophet SAW and you are very right if we are Muslims and follow a greatest leader and Prophet of Allah, Khatam un Nabiyeen then JUSTICE of this love and affection should have no limit. And we should follow and abide each and every step taken by our Prophet Hadhrat Muhammad SAW.
Infact we should go in more details as of why we should we eat meat and how does it affect one’s spiritual life. I will inshallah share more information soon.