It wasn't the age, it was the cognitive decline. The sort of cognitive decline that makes it difficult for a person to form coherent sentences, and absorb new information, answer questions instead of falling back to talking points. It wasn't that he had been getting worse for years, it's that it's this bad now, imagine what it will be like in 4.5 years.
Conservative Americans deserve a better candidate than Trump.
I do want someone better than trump, but there has not been a good candidate in my lifetime (I am in my 40s), so I am not going to hold my breath that one of the two teams will give us someone good.