Ah, the garbage dumpster argument: pile enough garbage up, and tell the reader somewhere in the dumpster one argument might be real; you need to wade through all the garbage to find it.
I don't have time to wade through all the garbage. I'll go with the three strikes you're out approach: if your first three arguments aren't convincing, I'll stop there.
There are lots of reasons I am skeptical of this: 1. A primary method of convincing others is to ridicule and insult them. Notice the responses and downvotes this post will get.
2. We have seen vastly higher CO2 levels in planetary history
Yep. And, you know what? All of those higher CO2 levels were associated with higher global temperatures! That's not evidence against the effect of carbon dioxide on global warming-- it's evidence for the effect of carbon dioxide on global warming
and right now we are seeing what is actually all time lows..
Nope. Current levels are higher than it's ever been for as long as we can measure the CO2 record from ice cores, well over a million years. I think you're talking about really long ago. In that you'd be correct: carbon dioxide levels were higher before the Pleistocene. These were also, however, times when the Earth didn't have an ice cap or glaciers. So, again: this isn't evidence against the effect of carbon dioxide on climate-- it's evidence for it.
We should expect CO2 increases and, in fact, hope for them as going much below 300 ppm would see the beginning of a massive plant die off - there's a reason commercial greenhouses pump CO2 into their facilities.
Slightly misleading. Carbon dioxide increases plant growth-- but only in environments in which CO2 is the limiting resource, not other nutrients, water, or sunlight. In a greenhouse, where you make sure that the temperature, nutrients, and water are all optimal, sure, it's worth adding CO2. Outside, though, it's only one effect among many.
3. The temperature change we are seeing now is far from unusual, we've seen similar changes in both rate and magnitude before. In fact, what we are seeing now does not stand out from background noise.
Doesn't stand out from the background... over tens of millions of years. Even so, actually, the current rate of warming is pretty exceptional. It does, however, stand out from the background over the period in which we have good measurements of both temperature and of all the other forcing factors, such a solar irradiance. So: no.