Debate : Rewrite

Ignore Kanji (Japanese)

Thank you ladies and gentlemen, today we are debating on the topic that Japan should significantly relax it's immigration policies.
We, on the negative side, strongly disagree with this opinion statement for two reasons.

The first thing to consider is education. In order to work in Japan, immigrants are required to understand the Japanese language. Since the Japanese language is totally different from any other languages it is really hard for foreigners to master Japanese. What is worse is that currently in Japan, there are not enough teachers that can teach them the Japanese language. Therefore it might be confused bad if we accept a lot of immigrants since the education system has yet to be prepared enough.

I've edited it grammar wise although I don't think you should add the word "might" as this is a speech. It's better just to state things so that your argument is stronger.

"Therefore they would be worse of if we accept a lot of immigrants since the education system has yet to be prepared enough."

In most of the successful countries in accepting immigrants like Europe, Australia, or and the United States, people speak English or the languages that is are based on similar to English and so the situation is different from than Japan. Moreover, there are a lot more of opportunities to learn languages in those countries. 名古屋大学浅川晃弘

Our second point is the crime rate. If Japan significantly relaxes its immigration policies, those who just want to escape from their own countries will be increased. This may lead to the increase in the crime rates because those people are might not particularly not care for about Japan as a country. According to a crime expert ピーター・キャフリー (Peter Caffrey?) in 2014, the crime rate in Britain has increased by 70 times after they started accepting a lot of more immigrants. It is true that not all immigrants are dangerous, but it is hard to determine who is safe or and who is not.

So in conclusion, Japan should not significantly relax its immigrantion policies because of the lack of education system and the probability of the increase in the crime rates.

If you're worried about the length of your speech (two minutes, right?) There are bits you can add to your speech if it isn't long enough.