How conservative the Japanese people really is? And the government?

In the old era, gay relationships were very common and were even praised among the privileged social classes, such as Samurai and monks.

How do you see these below?

This is a very vague question. But considering the asker’s comment on Mr. Nakajima’s answer, your interest seems to be in sex-related matters (I don’t think it’s the only indicator of conservative/ progressive, though).

You found a love potion, and your friend tried to use it on an attractive popular girl, but he accidentally dropped it on the neighbors dog. Now the dog won't stop following him. How would you help him?

It’s very common for a girl/ woman to ask a boy/ man to be her boyfriend.

Yaoi

Moreover, buff guys are often avoided for their narcissism.

Have your parents ever walked in on you?

They don’t tease or beat up cross-dressed people on the road.

We don’t instantly tie it with sex when a father and his very young daughter are taking a bath together.

Visual-kei

How does it feel to watch your wife get fucked hard?

They don’t have the value that “guys must be macho.”

“None of my business” is the common attitude.

They don’t bring around their mates everywhere, which means they don’t worry about being single, gay, or whatever because no one cares about whom others are having/ not having sex with.

What Makes the Florida Panthers Special? Gaudreau Tribute a Fine Example - Florida Hockey Now

They don’t have the so-called “couple culture” seen in many Western countries.

I sometimes feel people from the West are obsessed with those “gender” and “sex” things too much. Let’s think about something else sometimes. It’s unhealthy.

They were very similar to the bromance of today but accompanied by sexual intercourse.

The Trump admin ordered a coal power plant to stay on past retirement. Customers in 15 states will foot the bill - CNN

I’ve heard it’s always the male side that is expected to take a move in some countries. It’s not the case in Japan.