Well, your uncle was a racist but not every old person is. My point still stands. Older generations have different standards of what constitutes racism because they were raised differently.
That statement isn't racist, there is zero hate. You are the one putting a racist spin on it. He didn't say "because one black man did a bad job they all would". That was all you.
I interpreted it as:
Since Obama was elected based on the color of his skin and did a terrible job, Americans are going to be suspicious of future black candidates and be less likely to vote for them in the future.
The point being Obama was incompetent and only elected as a token and nobody is going to fall for that twice.
Reasonable, logical, and not racism. You see what you want to see, or in most liberals cases, what they're told to see.