If "allowing" sex tourists is a reason for not respecting a certain group of people (the one getting "cucked", or whatever), then it would be impossible to respect anyone, as sex tourism is much, much, much more, than simply "evil white men" going to Asian countries. There's white men going to white countries, Asian men going to Asian countries (probably much more than white men, for example, according to organisations helping "kopino" (mixed korean-philipino) children get korean citizenship, there's around 20,000 such children born thanks to korean sexpats every year), and so on. And then there's also men of other ethnicities with different sexual preferences etc. And then, you also have the hordes of women who do the same thing. From my experience, whenever someone mentions sex tourism specifically as an issue of "the evil white men" going to underdeveloped Asian countries (while ignoring all the white men going elsewhere, all the Asian men doing the same, or even all the Asian women going to white countries (and elsewhere) for it), then they are either ignorant, or almost definitely have a certain agenda to propagate.
And I won't even comment on how many times I saw users on those types of forums muse about "sticking it to whitey" by going to underdeveloped white countries to exploit women there. If that is what you need to be confident in your masculinity, then you are a pathetic piece of shit.
And from what I know about him, ET (Eurasian Tiger, real name Tendies Spencer, mod of r/Hapas) should quickly seek serious mental help instead of posting bullshit on the internet.