Maybe it will sounds so hateful but as a Muslim I think most of the Muslims are ignorant and uneducated,our religion is about love and kindness but most of the Muslims are so hateful,they treats womens bad,they treat animals badly,they have no respect for others,they are judging Christians Jews and Gays,but they don't do anything for love and kindness,they think heaven is only for Muslims,they don't do anything for science and art,do you think Allah proud of this?
In 2017 Iran produced more scientific research (if we count published scientific papers) than Switzerland, Poland, Sweden, Belgium or Denmark. Indonesia’s scientific output went from 1262 papers in 2007 to 18683 papers in 2017. Your ideas about Muslims not contributing to science are rather outdated. In the century starting with 2100 Muslims could easily be producing over half of all the science produced in the world if we judge by present trends.
Rather than comparing Muslims to some imaginary ideal, compare Muslims to how they would be if they were not Muslims. Of course Muslims have their problems, but if you compare them to non-Muslims of the same country, you will see that they are actually similar to or better than the non-Muslims. Egypt’s Coptic Christians are in no way nicer, kinder or more pluralistic than Egypt’s Muslims. India’s Hindus are no better than its Muslims. Turkey’s secularists are no better than Turkey’s devout Muslims.
The problem is not with Islam but with their local cultures. Culture takes time to change and things have greatly improved over the past 100 years. Indonesia went from having 6500 university students in 1950 to having 4.2 million university students in 2009. This is going to lead to tremendous cultural change over time.
There are over 100,000 British converts to Islam in Britain. Do you think that by becoming Muslim they magically start to treat animals and women badly and become less kind toward others? If you have met many converts to Islam in the West (like I have) then you will know that they continue to remain authentically European/Western. They continue to care about the things they cared about before Islam (things like animal rights) while becoming much better people due to their increased spirituality and their decreased worldliness.
When it comes to good non-Muslims, they become even better with Islam.
As for Muslims thinking that only Muslims go to Paradise, there are tons of Jews and Christians who think the same of their own religion. And there are many Muslims who believe that the good and faithful people from other religions will also go to Paradise.