The sentence "It has, stupidly and undemocratically, rescinded laws which made Russian a second official language in Ukraine" is inaccurate.
The parliament voted to rescind the law on Russian language introduced by Yanukovych. But then the vote to repeal was vetoed by the president, and the proposal hasn't been raised again.
(Even if it had not been vetoed, Russian would have remained an official language in Crimea, which has an autonomous status within Ukraine).
It is still true that the parliamentary vote was stupid and undemocratic, and tells us much about the current parliamentary majority.
But it is not true that the rights of Russian-speakers in Ukraine have in fact been abridged.