at what point will this current situation stop?

It won't. It will slow down to a degree when the Syrian conflict ends but the precedent has been set that making the journey to a European country and claiming asylum may lead to the the possibility of residing in a country and having a much higher quality of life in every aspect for you and your family as people from 3rd world countries currently without war have been/are currently doing.

Will the people fleeing Syria return home?

No.

And why so much desire to enter the UK?

Welfare, social housing, NHS, health services, education for their children. A much higher quality of life in general.

After all, if one person came to you hungry you would of course feed him, but if 50 people came then what could you do?

You decide the amount you can feed and deem which of the people are most vulnerable, you deny the others food as it will cause detriment to yourself and your family and your food source simply can't support such numbers who take from the pantry but don't replenish.