Radical Senate candidate Abdul El-Sayed’s racially charged swipe at Second Lady Usha Vance is badly backfiring, threatening to alienate Michigan’s 130,000 Indian-Americans and crucial female voters, insiders told The Post. The unprovoked jab at the second lady exposed El-Sayed’s own insecurities said one GOP insider, who accused the anti-Israel Democrat of victimizing women to look tough when he snidely posted to X: “So do we think JD is taking Usha with him back in time to meet Papaw, or no …” Michigan Senate candidate Abdul El-Sayed faces blowback for bringing up second lady Usha Vance to go after Vice President...