Cats are better than dogs.

Really? someone posted a fallacy to this. This whole premise is subjective and mostly opinion. There is no conclusion so, ..|..
1 fallacy report.
Begging The Question

Cats are better than dogs.

Since this argument is subjective, cats have superpowers! They use their whiskers to guage whether or not they can fit through a space, and are extremely sensitive to air movement that can be used to sense prey, foe or life in a mutilated victim. Some species run fast as f***! Also, hiding in boxes.
1 fallacy report.
Irrelevant Conclusion

It is okay to lie to support your argument

Not if it is simply to "win" an argument. If a lie is used to support an argument in an effort to protect from harm(physical, psychological, etc.), I can see how it would be beneficial. One should be open to their views/opinions changing in light of new information or misinformation toward "truth"

Polygamy should be legal.

More polygamous marriage would increase the number of unmarried men due to increased intrasexual competition. In turn, this would increase crime rates, social disruption and substance abuse. Monogamy has shown how males become more risk-averse and future oriented which improves overall child quality
1 supporter.

Polygamy should be legal.

Thank you for flagging "Appeal to Authority" I realize that I didn't have a full understanding of my point. With that said, I did some research, I found out a few things. Our current society would have no need to be polygamous and would be very detrimental for multiple reasons. Once again, Thank you

There is no such thing as an unselfish act

Here's a source! TL;DR Self preservation is the key to survival of the species. The desire to stay alive is a selfish instinct. "Survival of the Fittest"

Polygamy should be legal.

It's in our DNA, kind of. Read source. TL;DR We are "monogam-ish" depending on social status.
2 fallacy report.
Appeal To Authority
Appeal To Belief

We can know nothing for certain

Reality is relative

Abortion should be illegal.

You didn't accurately read the point you are objecting.
1 supporter.

Gay people are bad for society, and should be banned.

How so?

Men and Women are fundamentally different. Gender is not just a construct of society

Male brains utilize more gray matter which are localized areas of the brain which help with focus and attentiveness. Female brains use white matter which is what connects gray matter and better suited for multi-tasking. Also, female brains have a larger hippocampus than males. READ SOURCE!!!
1 supporter.

Men and Women are fundamentally different. Gender is not just a construct of society

Here's a source!
3 supporter.

The Terms of Service of this website should be translated into english

you could just copy and paste it in translate.google.com
1 supporter.

Marijuana should be legal

This is a repost?

Running is better than cycling.

An improper seat and poor posture while riding can cause potential damage to the perineum which could lead to erectile dysfunction.