I don't. Leave them to do whatever they want. Some people are just not interested in listening and so I gave up trying to talk to them and now only offer my op

I don't. Leave them to do whatever they want. Some people are just not interested in listening and so I gave up trying to talk to them and now only offer my opinion if asked, even when it comes to computing. All they're looking for is someone to agree with them, even if it isn't the right thing to do. As for this particular situation, I haven't seen it succeed before. What usually happens is the project becomes a money sink-hole for the company and you'd get called in to try and save it.