THE kind of racism on display at Tregunter Tower in Mid-Levels could not be prevented even if new anti-racism laws were proposed, government officials and migrant workers' representatives said last night. Residents at the prestigious apartment blocks received unsigned and badly spelt leaflets at the weekend saying amahs should use the service lift and that: ''If you don't like it, please go back to your country.'' City and New Territories Administration Regional Secretary for Hong Kong and Kowloon, Christine Chow Kwan-tai, said actions against amahs were contemptible: ''Any form of discrimination is condemned by the Government. However, if it happens inside a private building there is very little we can do. ''We should try to improve our education rather than rushing to legislate because changing the public's attitude is not something which can be done through legislation.'' Jovita Leano of the United Migrant Workers said: ''Legislation against this is not the answer. If there was a law, would the Government put the resources into enforcing it?'' ''The best way to deal with these people is to laugh at them. ''Really this a storm in a tea cup. There are many worse forms of racism happening now, such as false accusations of theft and physical abuse.''