People have been protesting about this for decades. This has led to law changes which make it harder to protest at the actual targets so we end up with things that feel out of touch and ineffective like throwing colourful cornstarch at Stonehenge or blocking traffic. This puts people off.
I also agree that there is a lot of fatigue around this, some of us have been in this for 40+ years. When you've already been in regular contact with representatives, done as much insulation as possible, added on more environmentally friendly energy systems, don't drive, don't fly, living near and supporting rewilding and development of new forests, having most clothes be second hand, reducing animal products and food miles...being continuously told that I need to do more, that we need to do our bit, that we need to not be complacent about it all can feel like a tiring joke told too many times.
There is also frustration that every solution often has significant issues as well. We can recommend solar panels all we want - I have solar panels, and I'm aware that they will need to replaced, the issues of mining the minerals to do so, and we're not really at a place yet where recycling or repairing them is accessible to most. Similar with heat pumps, a lot of heat pump maintenance companies only want to work on systems they installed, and schemes that have been used to support low income families putting in these systems rarely prioritise a local company who can do maintenance, leaving people struggling and needing to pay significantly more to get in maintained for those who already have gas systems. There are a lot of questions around insuring them - especially the outside component, quite a few companies outright refuse - and there is the issues around the supply lines around these products. They're flogged as part of the solution while the complications they can add get dismissed with the push for people to do more, often the people with the least who are being impacted the most already.
We can rage on all that, but raging can only be sustained for so long, and people need to keep their own wellbeing in mind in their activism or we'll burn out. Rage is not going to get us a sensible long-term plan. It's not the grounds social change really comes through.
We live in a democracy where people can put pressure on their politicians. We also live in an oligarchy where the needle has only budged when enough corporate interests have aligned with those public interests or when those in wealth and power haven't cared and people have cared loudly. Pretending if we just have enough of a public outcry or put enough pressures or enough of us push for green energy, politicians will rally is the same 'we all need to be doing our bit' tired joke.