I'm also against chopping down trees - but sometimes tree protection turns into a pretext for NIMBYism, especially if it's against projects that are also good for the environment, such as public transport (felling 189 trees for a bus lane sounds like a lot, but if the trees shown in this photo https://proarbmagazine.com/controversial-sheffield-bus-lane-... are representative, those look more like shrubs)
It was a bigger scale. The plan was to cut down 17,500 of 35,500 street trees, all due to a total mis-reading of a report.
Instead of backing down the council ploughed on, got people arrested and even tried to jail one of its own councillors for protesting. It was a huge fiasco.
Hazelnut on cities are mainly from two different species. Corylus avellana is clearly a shrub, even if can grow 6m high with time, and will recover fast from being chopped, but the other species is a tree.
"one more lane" a buss lane means more hard and hot surfaces in a city. As long as you just add hard surfaces you are still making things worse. With that said buss lanes are more important than car lanes.