[A] good day for the Tories and the right wing, and that is all ignores the reality and complexity of Scottish politics. It's a real country with a long history and many problems, not some bouncy-castle wonderland of haggis and EU flags and free prescriptions and government-issued "go away, homophobes!" fliers (although we do have those, too).
Nicola Sturgeon will be replaced as FM by another SNP MSP and will stay on as an MSP. The balance of power (and seats) at Holyrood remains the same. But just as Scotland is inconveniently real and complicated, so are Scots. And there are actual differences of opinion on particular subjects among people who overall hold the same goals and outlook.
So, many people across the Scottish political spectrum DO welcome NS stepping down, and that doesn't make them magically change ideology or political party even if some kids on the internet insist it does. Here are just a few real-life examples, unrelated to "gender":
Indy supporters who believe NS has sold out to gradualists and devolutionists and deprioritised independence. Many of these are far to the left of the current SNP leadership, including what's left of the various Scottish internationalist socialist and communist parties and co-op movements who pursued an independent Scottish republic back to the days of John Maclean and Red Clydebank. (Of course, some contributers here would probably claim that the Scottish Workers' Republican Party align with Donald Trump 😏)
UK Unionists, who want independence off the table and believe that NS's departure weakens the SNP. In addition to "Tories" and whatever UKIP is called now, this is the fixed position of Labour (who until 2016 WERE the SNP's official opposition at Holyrood) and the Lib Dems.
Politicians and activists across the political spectrum who want the SNP weakened for their own gain - even the Greens want a decreased SNP seat share to increase SGP influence in the coalition government. Conversely, many in the SNP want an absolute SNP majority to cut the Greens (perceived as wishy-washy on independence) out of government altogether - something that NS, despite inheriting a majority, never achieved but they believe another leader could.
NS said today that she can't lead the next independence campaign and therefore wants those who WILL lead it to take centre stage at the party conference next month. SHE believes it's what's best for the SNP and for Scotland. Why assume that her replacement will be LESS successful, rather than building on what's been done in the 25 years the SNP has been in government and achieving even more? If NS is so great, why not trust her judgement and learn from her mistakes? She herself said she was sorry she hadn't succeeded in balancing women's rights with GRR, letting everyone speak, and "taking the heat out of the debate". Of course (most) Scots hope her successor does better.
"Right wing" is too often used as a lazy, misogynistic dog-whistle in UK politics, and MN seems to be a magnet for boys who cry wolf (or right wing, or fascist, or whatever). Meanwhile the actual far right are getting stuff done while people who claim to oppose them are doing their dinger over women being allowed to talk about things that impact them. Get real.