My SO literally just argued with me because I told him I would rather him not buy a truck with no way to have my…

My SO literally just argued with me because I told him I would rather him not buy a truck with no way to have my daughter in the backseat properly. Its one with no back seat and he thinks its okay to have her upfront!!!! LIKE HELL NO! First off Airbags would have to be turned off, second THAT JUST IS NOT SAFE!