If you define the color red with the word "red", the number of colors that fall in the category of being red is understandably quite limited.
However, if you redefine the word red and have the new definition also include colors that aren't really red, but are somewhat close to red or have a small amount of red in them (like pink or orange or purple), the number of colors that red defines increases considerably.

The same thing happens when you redefine the word "antisemitism" to include words or actions use to rightfully condemn an ongoing genocide by a psychopathic, ethno-supremacist state. Of course the "instances" of antisemitism will rise-- because you just redefined the term.

The word "terrorism" is has also been redefined many times. It now seems to include anyone that has anything critical to say about the murderous state of Israel or its pernicious ideology. No doubt, it will increase more in order to allow the government and Zionist supporters to harass, oppress and murder the growing number of people (both in the US and in the world) who have finally opened their eyes to the evil ideologies that are Zionism and Christian Nationalism.