http://www.270towin.com/states/New_York
I think this'll be the last time I reply to one of these posts. They have seemed less than educated about the situation.
I'm not saying your voting for Trump as a lark is likely to have any consequence. I'm just saying that doesn't make it any less stupid.
If you want a more serious retort, by assuming your vote for President has no value (which is likely correct, as you say) you've reduced the act of voting to a wholly symbolic one. And your choice in so doing is to demonstrate complete indifference to the actual evils Trump stands for because you think it would be funny.