“There are no absolutes.”
“I agree. You are absolutely correct!”
A sentence can be grammatical, but still illogical. Making an absolute statement that denies absolutes is self-defeating nonsense.
Turn it back a notch and then you’ve maybe got something.
“It would seem there are very few absolutes.”
There, now that’s a safer thing to say, but couched as it is in qualifications, it comes off as weak.