Want to really get someone to consider your viewpoint? Carefully consider your ideas first, then tell them once. Be silent while they say whatever they want in response. Then drop the subject.
Hmm this never works. I’m in a similar position in my team at work. “Hey we should do X because Y and Z.” “Hmm no, I don’t like that.” Nothing gets done…
Nope. Listen to them first. Really try to hear them. When people feel heard, they tend to listen better.