2. textiles and apparel are an industry that many countries tend to protect. underdeveloped countries, especially in asia, try to expand their textile industries to achieve development and economic growth.
why would lowered trade barriers on textiles around the world be to these countries? how might lowered trade barriers be harmful to them?

Lowered trade barriers would probably mean the ability for foreign textile and apparel countries to enter. The countries that would except these foreign textile traders would benefit definitely because one, there would be more taxes to collect. Two, there would be more competition so the local textile companies have to work harder. Good for the people. With this money will circulate. The more the people spend on textile and apparel, the more taxes the country can get. The only downside is that while there is more competition, the local countries might not be able to compete with the foreign ones. 

They most like influence us an there self