Why does no one in this thread seems to know the existence of gloves?

Also, where does the concept of 'touching a dog is a sin' come into anyway?

From my understanding, the dog/pig is only considered 'najis' which implies it only prevents you from performing solat until you have cleaned/purified yourself with the appropriate method. As I see it is never said that touching a dog/pig is considered a sin.

If like that everytime you piss/poop you will also sin, because you are in contact with 'najis' also.

Everything made with yeast, including bread will have alcohol as one of the side effects of using yeast itself (Yeast consumes sugar and produces carbon dioxide & alcohol). Because of this all types of bread will inevitably have some traces of alcohol in it.

Why is no one questioning this instead?