However violent games played in childhood are just one causative factor out of many.
This is not wrong, but I prefer the word, "contributoary" for this idea.
Your introduction flows beautifully up to this point;
Therefore,I rather disagree with the fact highlighted for the increased crime rates in the world.
.... I feel you should align your opinion with the topic more;
Therefore, I do not fully agree with the fact that increased crime rates are a resulted only by children playing violent videao games.instance children in the western world are exposed to alcohol and substances than thechildren in Asian countries.
Unemployment and poverty are considered to be major causative factors leading to high crime rates. In addition, personality disorders also relate to the increased violence among teenagers. Therefore, these are considered top in the list as opposed to violent games played in childhood.
... you give two reasons to support your argument. However, you don't provide specific examples for them. You'd cetainly earn marks on specific examples. My suggestion is to restrict your reasons to just one reason per para and then provide a specific example for that reason. This would help you manage time and earn marks both :)
Good writing !