He's not going to ban vaccines. He wants an investigation into them and whether there's any link with autism and other disorders. Now that may be anti-scientific BS... or not, but there's no harm in looking into it. And he wants to end protection against liability for the vaccine manufacturers if they do cause harm.
And according to his website: "He will ban the hundreds of food additives and chemicals that other countries have already prohibited. He will change regulations, research topics, and subsidies to reduce the dominance of ultra-processed food. He will clean up toxic chemicals from our air, water, and soil. He will ensure that research into pharmaceutical drugs, pesticides, additives, and environmental chemicals is scientifically unbiased."
That is something everyone can get behind, surely?
Where's the bad part of that video?