Yes, there is disappointment from the local population. However, having some presence is much better than having no presence, so we need to support the peacekeepers who are there.
The peacekeepers need adequate equipment, including non-lethal weapons, because most of the time you can solve problems without killing people. You need tear gas, tasers and the other types of weapons that are necessary for most of the jobs. The UN runs on a shoestring. It's understaffed, underequipped and under-resourced.