I'm not sure that heavy sarcasm like this is constructive. While I thought it was funny, I think it encourages the audience to automatically disregard and deride the subject. In my experience, heavy sarcasm tends to both make the subject angry and reinforce the subject's (erroneous?) beliefs.

My own sarcastic responses (about political or otherwise weighty matters) typically just polarize the group I'm in, making the new in-group like me and the new out-group dislike me.