Ban childless people from voting!!!

If you don't have children, then you don't care about the future of this nation; and anybody that doesn't care about the future of this nation shouldn't be allowed to vote. 

If you were consistent, then anyone that doesn't believe climate change is a serious problem,

wants to abolish the department of education,

smokes tobacco,

and people that oppose medicare for all.

I think that if you have an IQ less than 110 you should not be allowed to vote

The people who think it''s a problem just export their C02 emissions to china

Abolishing the department of education would result in kids receiving a better education and therefore having a better future. The cato institute has some articles that can explain this for you.

You can shorten your own life while simultaneously caring about your children.

this is already debunked as medicare for all kills more people. Unless you are genocidal you should oppose it.

Why does the EU have lower obesity rates than the US?

people who choose to not have children should be allowed to vote.

Because they have better eating habits

Wrong. They would prioritize the short term (there own lifespan), over the long term (perhaps a 250 year time horizon).

And why is that?

Then why do they want to deal with climate change so badly?  The sea levels would rise a lot by 2100 according to the scientists; 40 year old climate change activists with no kids aren't being alive for that

.

Wisconsin Senator Gaylord Nelson, the father of Earth Day said before the first Earth Day in 1970 that “the secretary of the Smithsonian Institute believes that in 25 years, somewhere between 75 and 80 percent of all the species of living animals will be extinct.”
Not to be outdone, Life Magazine reported that same year that “Scientists have solid experimental and theoretical evidence to support…the following predictions: In a decade, urban dwellers will have to wear gas masks to survive air pollution…by 1985 air pollution will have reduced the amount of sunlight reaching earth by one half….”
Stanford biologist Paul Ehrlich, the celebrated author of The Climate Bomb, wrote in 1971 that "by the year 2000 the United Kingdom will be simply a small group of impoverished islands, inhabited by some 70 million hungry people … If I were a gambler, I would take even money that England will not exist in the year 2000.”
In 1975 Newsweek ran a now-infamous article entitled “The Cooling World,” which cited several climate scientists in concluding that “the central fact is that…the earth’s climate seems to be cooling down…If the climate change is as profound as some of the pessimists fear, the resulting famines could be catastrophic.”
Global famine was a popular prediction in the 70’s.  North Texas State professor Pete Gunter summed up the prevailing sentiment when he wrote in “The Lving Wilderness” that by “by the year 2000...the entire world, with the exception of Western Europe, North America, and Australia, will be in famine.”
In 1986, NASA scientist James Hansen testified before Congressthat “global temperatures should be nearly 2 degrees higher in 20 years, ‘which is about the warmest the earth has been in the last 100,000 years.’”
Two years later, Dr. Hansen told an interviewer that in 20 years, the area below his New York City office would be completely changed, most notably that “the West Side Highway [which runs along the Hudson River] will be under water.”

People who donate very little of their income to charity don't care much about others; should their voting rights be taken away?

The real reason you don't want childless people being allowed to vote is because they lean democrat and you want to make it easier for republicans to win elections.  If childless people leaned republican, then you would support their right to vote

But whichever way a group leans shouldn't matter in terms of their right to vote.

but I feel like you are going to say because they have better emergency room services despite me providing a link that proves the opposite

Because we have heard this all before.