I can understand being upset by downvotes. It irks me from time to time too. But you just have to accept that perhaps you didn't formulate your argument clearly

I can understand being upset by downvotes. It irks me from time to time too. But you just have to accept that perhaps you didn't formulate your argument clearly enough, or that not enough people agreed with you to upvote and cancel out the downvotes ... Downvotes can be a little cruel but they do work well at helping to eliminate noise. It's not an ideal system but it is simple and effective.