Man gets savage response after tweeting that; 'there are two genders, male and female; the rest is mental illness'

David Vance was only airing his opinion when he tweeted that there exist only two gender, the male and female gender, but got a response he will not forget in a hurry.

There are two genders, male and female. The rest is mental illness. We are being asked to accept mental illness in the name of "equality," David tweeted.

Then someone lashed out at him saying,

A statement like this can only come from a man who is not a parent. A father would think twice before casting this opinion'.

But he bounced back pretty well with a clapback of his own, 

I am a father, You are an idiot.