It's not a shallow dismissal and your comments only prove you either don't understand the landscape or are choosing to ignore what's staring you in the face.

Try to use any google property on Safari (or non-chrome browser on any platform) and see all the times Google tries to push you to use Chrome and/or sign into your google account. When logged in it puts a banner at the bottom of every google search and when you aren't logged in it shows a modal that takes 1/3rd of the page.

Google reigns supreme on the web from everything from search to email and docs/drive/etc. Their reach is massive. They have in the past and will continue in the future to use that reach to push people to use their browser engine. How does Apple/Safari/Webkit compete with that? It's not that the browser is better but that the sites they visit push them to use a different browser.

Apple can double down on privacy and security and brand Safari as the browser that won't steal your data. Own that space, spread the marketing, they have enough capital to create solutions. You might as well ask how iOS can compete with Android. This continuous insistence that Apple is helpless is completely anachronistic and demeaning to Apple itself.