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.

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).

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 is chudai?

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.

Yaoi

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

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How do you see these below?

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.

Isn't it great that we have an incoming president who is embracing ideas from the past like manifest destiny? Isn't it greater that Trump is willing to get us more territory and land?

Moreover, buff guys are often avoided for their narcissism.

Visual-kei

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

What is the hidden meaning behind 'Skibidi Ohio', and why is it trending?

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

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

“None of my business” is the common attitude.

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