Pinning the blame on the individual allows people to feel like they are doing more. It's like what they are doing with COVID, things like masks and vaccines are placed in much higher rankings of importance instead of ventilation and cleanliness.
The other problem is that modern lefties make it very hard for the average white christian working class man to associate with them given their liking of things like identity politics and things that are largely irrelevant to helping reduce income disparity.
The same can be said about the modern right wing, while they are pro reduction in things like taxation, they also want to reduce immigration, at least in paper, which makes your average CEO not want to support right wing politicians to avoid controversy.
Sorry for the tangent, but I definitely agree that most politics are targeting the individual because companies nowadays hold so much power in government and want to expand this control.