There are no spiral orbits. Canceling the forward motion is exactly what you need to do, to bring down the next periapsis to 0. Now, you can go with a periapsis of about half a million km, because the sun is pretty big, but that is not a significant difference. Getting anywhere near the sun, is the hard part.

Warum etwas ändern, wenn Hunderttausende dafür demonstrieren, dass du das kleinere Übel bist?