Normal people do not brush off such suggestions as nonsense when there is plenty of evidence to suggest such things were indeed possible.
1) If actual, credible evidence that President Obama was not actually legally capable of holding the office to which he was elected,
it would have been presented and held up in court, and his Presidency would not be about to enter its second term. There
have been lawsuits, and they have been struck down because the "evidence" is a bunch of
bullshit. "Normal people" brush off accusations of foreign birth when a preponderance of evidence exists
falsifying such a claim. Evidence like a birth certificate from Hawaii, or the fact that, since his mother was an American citizen,
Obama would count as a natural born American even if he was born in Kenya, just like children born to parents on vacation or serving in the military stationed in foreign lands.
John McCain, entertainingly enough, was
actually not born in the US. He's still a natural-born American citizen, though, because his parents were citizens.
The "birther" claim is
worse than false -
even if it were true it wouldn't affect Obama's eligibility to be President.
That is why "normal people," meaning people with an IQ above freezing and possessing the reasoning capability of a housefly,
dismiss such ridiculous claims.
The "birther" nonsense is used by dramatic attention-seekers like Trump, and otherwise is exclusively used by absolute loons with the biggest case of "sour grapes" in recent memory.
2) Being a Muslim would not affect President Obama's eligibility to be the President of the United States. The office of the President does not afford the power to enact Sharia law or any of the other nonsense involved in the "steal Muslim" conspiracy theories. Therefore,
even if such speculation were true, it would be utterly meaningless.
And, you know...if Obama was secretly on Al Qaeda's side, he probably wouldn't have ordered the strike that killed bin Laden, and he probably wouldn't be using drones to kill so many Muslims.
It's unbelievable that people still cling to these absurd bits of insanity.
The human understanding when it has once adopted an opinion (either as being the received opinion or as being agreeable to itself) draws all things else to support and agree with it.
- Francis Bacon
"There are two novels that can change a bookish fourteen-year old's life: The Lord of the Rings and Atlas Shrugged. One is a childish fantasy that often engenders a lifelong obsession with its unbelievable heroes, leading to an emotionally stunted, socially crippled adulthood, unable to deal with the real world. The other, of course, involves orcs." - John Rogers
A world that can be explained even with bad reasons is a familiar world. But, on the other hand, in a universe suddenly divested of illusions and lights, man feels an alien, a stranger. His exile is without remedy since he is deprived of the memory of a lost home or the hope of a promised land. This divorce between man and his life, the actor and his setting, is properly the feeling of absurdity. — Albert Camus
"...the pious hope that by combining numerous little turds of
variously tainted data, one can obtain a valuable result; but in fact, the
outcome is merely a larger than average pile of shit." Barash, David 1995.