He is saying that LGBT advocacy/public exposure (what LGBT "propaganda" have you seen?) results in caging. Isn't that worse? How is caging better than negative opinions?

What caging? He didn't say anything about any caging. Did you reply to the correct comment?

> the government never officially acknowledges them and doesn’t allow public advocacy

Do you think this is a polite suggestion from the government?

I wouldn't call any police action "polite", but the worst I remember reading about was a 24h detention of a crossdresser that was caught on security cameras by building administration while doing self-bondage videos. The security camera feeds were shared live with the other residents until the police arrived. That person described the policemen as "polite" in the uploaded video.

I trust it more than other internet posts, as it's a first-hand description. It also mostly matches what @yanhangyhy wrote here.