Show me a town that recently switched to trolleys and done a cost/benefit analysis after couple of years that confirms they saved money and I will absolutely agree with you.
Why don’t you show me a town that switched from trolleys to BeBs and saved money ?
I don’t have data, you don’t have data. All we know is that lots of cities choose electric/hybrid buses while no cities choose trolleys. If you think it’s because everyone working in the public transport departments is stupid and only some youtuber is super smart that’s fine. I’m sceptical.
Literally the first city I checked is switching gas powered buses to trolleys and new bus purchases are going down to 0 and Brno unlike many cities has an excellent public transport system