i think you need to inform yourself a bit better ...
look up the disadvantages of grid type incinerator. (dioxins, toxic ash)
(there are better, modern options)
explain why an extra 10 billion HK$ should be spent to create maybe 100 minimum wage jobs on barges and trucks, which further pollute the environment.
explain why waste incineration should be employed in the first place if no proper reduce, reuse, recycle waste management program is in place
explain why - if incineration is required - it should not at least be used to use the thermal energy for either electricity generation or (another proposed option) firing of cement kilns, which would otherwise be fired with fossil fuel)
explain why a pristine tourism destination should be spoiled with a unsightly industrial facility (as if Lamma Power Station wasn't bad enough)
....
so there is a bit more to it than "not in my backyard" ....