No, it is not possible for Venus to experience a flipping or significant change in its axial tilt as a result of having its moon ripped away by the combined gravitational forces of Earth and Jupiter.
Firstly, Venus does not have a moon. It is one of the few planets in our solar system that does not possess a natural satellite. Therefore, there is no moon to be ripped away from Venus.
Secondly, even if Venus did have a moon and it somehow got ripped away, it would not cause a drastic change in Venus's axial tilt. The axial tilt of a planet is primarily determined by the distribution of its mass and the torque exerted on it by other celestial bodies. The gravitational interaction between Earth, Jupiter, and Venus would be relatively small compared to the gravitational forces between the sun and Venus. The moon's gravitational influence on Venus would be even smaller. Therefore, the absence or removal of a moon would not cause a significant change in Venus's axial tilt.
Planetary axial tilts can change over extremely long timescales due to various factors such as gravitational interactions with other planets, tidal forces, and collisions with large objects. However, these processes occur over millions or billions of years and are not directly related to the presence or absence of a moon.
In summary, Venus cannot experience a flipping or significant change in its axial tilt due to the absence of a moon or the gravitational influence of Earth and Jupiter.