Because all of the stuff on that Twitter link never happened on a daily basis before trump was elected. Literally we are all racist and it's trumps fault.
Obviously racism is not right, but if you think trump is the cause or the effect for that then you need to do some critical thinking.
Is it that hard to believe? His campaign used a lot of racist and anti-immigrant rhetoric that has a lot of parallels to Brexit in the UK. The UK saw a rise of up to 60% in hate crime (YOY) in the weeks after the referendum (they still haven't returned to the previous years levels).
I'd wait until the official figures come out to be 100% but this sort of rise was on the cards as soon as he won.