Gay pride parades are held in response to hate, to raise awareness, not because gays think they are better than the rest.
Pride parades are not necessarily 'held in response' to hate parades.. They occur regularly and in my opinion, mainly celebrate LGBT cultures and pride.
I believe that homosexuality should be tolerated. That homosexuals should be protected from hate and active discrimination by the law. Many believe this too. However, some too don't believe that homosexuality and LGBT cultures should be
promoted. There is a difference between accepting that homosexuality is an uncontrollable natural abnormality and accepting the integration of LGBT cultures into traditional society. Gay 'pride' is also unnecessary, as I'v already said, in my opinion, there is no pride and also no shame in being gay.
If you think homosexuality is abnormal, then what do you think about all the other animal species that engage in homosexual behaviour?
As I said in another post, by abnormal, I mean that literally - it is simply not the norm. It is like being born without a limb. Is it normal to be born without a limb? No. Is being born without a limb natural? Yes. Abnormal doesn't necessarily mean unnatural.
Banning gay marriage is a form of discrimination. Why should it matter that people are used to it? Legalize gay marriage, and soon they will get used to it too.
I do concede the point here. Yes, society has evolved to a stage where such forms of unacceptable discrimination shouldn't be tolerated simply because of traditionalism. Nevertheless, there are still a few factors I've mentioned that society should consider before legalising gay marriages.
I have to go now, I'll respond to your other points later.