、。
This issue is a collision between the egos of idols and the egos of otaku.
Literal
This issue [topic-は], idols [genitive-の] ego [and-と] wota [genitive-の] ego [genitive-の] collision is.
A pop-culture analytical sentence. ヲタ is an internet/otaku-slang spelling of オタ (itself a clipping of オタク, 'otaku'). The ヲ is archaic hiragana wo — an old letter that survives only in the particle を. Using ヲ in katakana, as ヲタ, is a conscious slang choice that marks the writer as part of the otaku community. The sentence frames an argument within otaku culture as a clash of egos between performers (idols) and fans (wota). The structure is a simple topic-predicate equation, but the vocabulary stakes it out as insider commentary.