You're saying the Democrats, who are welcoming immigrants into sanctuary cities and fighting to protect the rights of legal immigration, are somehow also responsible for fear-mongering about immigrants?

I'm saying the Democrats who have accepted and now push the 2016 right wing framing on immigration and the border as a national security threat are fear mongering about immigrants yes. Her official platform literally has

Vice President Harris and Governor Walz believe in tough, smart solutions to secure the border, keep communities safe, and reform our broken immigration system. As Attorney General of California, Vice President Harris went after international drug gangs, human traffickers and cartels that smuggled guns, drugs, and human beings across the U.S.-Mexico border. As Vice President, she supported the bipartisan border [far-right] security bill, the strongest reform in decades. The legislation would have deployed more detection technology to intercept fentanyl and other drugs and added 1,500 border security agents to protect our border. After Donald Trump killed the border deal for his political gain, she and President Biden took action on their own — and now border crossings are at the lowest level in 4 years [why is this good if people crossing the border aren't bad], their administration is seizing record amounts of fentanyl, and secured funding for the most significant increase in border agents in ten years. As President, she will bring back the bipartisan [far-right]border security bill and sign it into law. At the same time, she knows that our immigration system is broken and needs comprehensive reform that includes strong border security and an earned pathway to citizenship.

That's an interesting take. What do you call it when Republicans...

Whataboutism. "The Republican party are evil so it's alright that the Democratic party is evil too!".

Edit: Also, I call them the thought leaders for the future of the Democratic party as they shift further and further right on these issues in the name of "compromise " and "reaching across the aisle"