Most those diseases are hereditary and just because people have healthcare does not mean they will live a healthy lifestyle. A healthy lifestyle is dependent upon each individual and heredity.
I know many people that have diabetes, RA,MS, cancer and they had healthcare but it was not prevented...
Neither party is perfect, but living in a State where the Dems run everything, I know not to vote for them. They will eventually take you rights away from you. Take a national perspective on who you vote for. Do you want 2nd amend rights taken away, open borders, Sanctuary cities, higher...