Strength of sigma and pi bonds

[Shanzey]

In one of the UA sessions, the UA mentioned that sigma bonds require more energy to break than pi bonds. Why is that?

[pauline young 1L]

there are more electron overlaps in sigma bonds which make them a lot stronger than pi bonds and thus requiring more energy to break

[Haley Pham 4I]

The electrons in a sigma bond are directly between the nuclei of the atoms are as close to the nuclei as possible, so the nuclei strongly hold onto the electrons, making it difficult to break the bond. The electrons in a pi bond are further away from the nuclei, so the nuclei weakly attract the electrons, making it less difficult to break the bond.

[AmyL_3L]

Sigma bonds are harder to break due to the location of the electrons, which are very close to the nuclei.

[Lauren Stack 1C]

If you think about the various diagrams we were shown of the orbital hybridization, you can see that the sigma bonds’ orbitals overlap much more than the orbitals of the pi bonds as they directly overlay each other.
This diagram I found helped me understand:

[005162902]

The electrons overlap much closer to the nuclei in sigma bonds. This creates a greater pull on them because of the attraction between the positive nucleus and negative electrons. This strong attraction makes them harder to break than pi bonds, that have less electron overlap.

[Omar Selim 1D]

sigma bonds are harder to break than pi bonds because the former are a result of end-to-end bonding while the latter consist of side-to-side bonds

[Anish Patel 4B]

Since pi bonds represent parts of double and triple bonds (which are considered stronger than single bonds), why aren't pi bonds stronger?

[Mariah]

sigma bonds are harder to break than pi bonds because the former are a result of end-to-end bonding while the latter consist of side-to-side bonds

So then why are double bonds stronger than single bonds? If they contain a sigma and pi versus just one sigma?