Apparently you don't fall into that group. That's your problem.
Actually, I agree with the premise.
Again, the problem is that by posting, "Intelligent people recognize Intelligent Design (God).", you appear to be ascribing the quote to God Himself.
Imagine if I came up with a patriotic slogan, let's take the one I use in my home page, "The United States of America was established by Divine inspiration and through Divine intervention to be the light to the World. We Americans have an awesome responsibility to this end."
After a bit of thought, I decide that George Washington would surely agree with that, so I post it as;
"The United States of America was established by Divine inspiration and through Divine intervention to be the light to the World. We Americans have an awesome responsibility to this end." (George Washington).
As egregious as that would be, it would not be blasphemy because it does not evoke God's holy name.
What I object to in your tag-line is that it falls under the 1. b. category of blasphemy from dictionary.com;
"blas·phe·my ( P ) Pronunciation Key (blsf-m) n. pl. blas·phe·mies
"The act of claiming for oneself the attributes and rights of God."
Please reconsider it.
Ping