There is always evil people ( I realisedd that myself a few weeks ago) however in your place you cannot merely take different route home.
If you know anyone who happens to know them, try to get them to mention it to them, because they will seriously not want to lose any freinds.
If you just ignore them after unfortunatley a long time they will get the message that you dont care about them, but whatever you do do not react, they are only doing this to get a reaction out of you, which they think after all their torture will make you quit pokemon, which is their goal, apart from making you scared.
Try to stick with freinds ( preferably more than they have) or be near a teacher, they will either be scared of the teacher or worried that you and your freinds can do more than they can.
If you know anyone who happens to know them, try to get them to mention it to them, because they will seriously not want to lose any freinds.
If you just ignore them after unfortunatley a long time they will get the message that you dont care about them, but whatever you do do not react, they are only doing this to get a reaction out of you, which they think after all their torture will make you quit pokemon, which is their goal, apart from making you scared.
Try to stick with freinds ( preferably more than they have) or be near a teacher, they will either be scared of the teacher or worried that you and your freinds can do more than they can.