Let's go over this one by one, shall we?
Governing by dictatorial fiat with lawless executive orders targeting Amnesty, Obamacare, gun regulation, etc.
Seriously, this? NOTHING he's done is outside the scope of his power. He has followed the law entirely here.
Waging illegal wars without the constitutionally-required approval from Congress
Nope. Obama has started no wars. Most he's done is supportive drone strikes. He doesn't need congress' approval for that, else I'm pretty sure he'd've been impeached already for that.
Assassination of three American citizens without due process via drone bombingsCan you say "Citation needed"? Because I don't remember hearing about this outside of Whirl'd Nut Dookie and deadmoran.com.
Bald-faced lying to the American people about the Benghazi attack, Obamacare, etc.First, where were you for Bush? Second, he didn't lie. For Benghazi, that's what intel suggested at the time. For Obamacare, he didn't expect your health insurance providers to be dicks. Third, lying isn't a "high crime[ or] misdemeanor", so it's not impeachable in and of itself.
First, at the time we didn't know the links, and second, this, again, is not impeachable, as it is not treason. Otherwise talking with China would have been considered treason.
Supporting Al Qaeda and other Jihadist terrorists in Syria and elsewhere
Encouraging massive numbers of illegal aliens to enter the US for his own political reasonsHe's not doing this.
Bizarre and erratic behavior, which implies psychological pathology
Forgery of his identification documents to make it appear that he is eligible for office
Wait, you guys are STILL on that? Wow...
Overall radical and subversive anti-American background, which is confirmed by his actions in office
Again, not impeachable.
Constitutional ineligibility for the office that he holds
How is he ineligible? Seriously. He's a U.S. citizen of 35 years or older, and he was born in Hawaii, which is a member state. Those are the qualifications: you have to be a citizen, you have to have been born in a member state, and you have to be older than 34. Which of these do you believe he does not meet? Oh, wait, you're birfers...Yeah, look at him eating crackers like he owns the place.